arXiv:0711.0337·v2·Atomic Physics

Linear Stark Shifts to Measure the Fr Weak Nuclear Charge with Small Atom Samples

Marie-Anne Bouchiat (Laboratoire Kastler Brossel, Département de Physique de l'ENS Paris)🇫🇷

Abstract

We study the chirality of ground-state alkali atoms in E and B fields, dressed with a circularly-polarized laser beam close-detuned from an E-field-assisted forbidden transition, such as 7S-8S in Fr. We predict a parity violating energy shift of their sublevels, linear in E, and the weak nuclear charge Q_W $. A d r ess in g b e am o f 10 k W / c m$ ^2 $a t 506 nm p r o d u ces a s hi f t o f$ \sim100 \mu $H z a tE = 100 V / c m, B$ \gtrsim $30 m G . I t s h o u l d b eo b ser v ab l e w i t h$ \sim 10^4 $F r a t o m sco n f in e d inan o pt i c a l d i p o l e t r a p . W e d i sc u sso pt ima l co n d i t i o n s, p a r am e t er r e v er s a l s an d a c a l ib r a t i o n p r oce d u r e t o m e a s u r e$ Q_W$.

Comments: 4 pages, 1 table

Linear Stark Shifts to Measure the Fr Weak Nuclear Charge with Small Atom Samples

Abstract

Citation historycountrateblocksopen in Citation History ↗

Citation historyopen in Citation History ↗